幸运大转盘-jQuery+PHP实现的抽奖程序-完善中
- WBOY原创
- 2016-07-06 13:28:291499浏览
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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>小雨在线网站自营销研究</title>
<link rel="stylesheet" type="text/css" href="css/style.css"/>
<!--<script type="text/javascript" src="js/jquery-1.7.2.min.js"></script>-->
<script src="//cdn.bootcss.com/jquery/3.0.0/jquery.min.js"></script>
<script type="text/javascript" src="js/jQueryRotate.2.2.js"></script>
<script type="text/javascript" src="js/jquery.easing.min.js"></script>
<script type="text/javascript">
$(function () {
$("#startbtn").click(function () {
lottery();
});
});
function lottery() {
$.ajax({
type: 'POST',
url: 'data.php',
dataType: 'json',
cache: false,
error: function () {
alert('出错了！');
return false;
},
success: function (json) {
$("#startbtn").unbind('click').css("cursor", "default");
var a = json.angle; //角度
var p = json.prize; //奖项
$("#startbtn").rotate({
duration: 3000, //转动时间
angle: 0,
animateTo: 1800 + a, //转动角度
easing: $.easing.easeOutSine,
callback: function () {
var con = confirm('恭喜你，中得' + p + '\n还要再来一次吗？');
if (con) {
lottery();
} else {
return false;
}
}
});
}
});
}
</script>
</head>
<body class="keBody">
<h1 class="keTitle">小雨在线网站自营销研究</h1>
<div class="kePublic">
<!--效果html开始-->
<div class="demo">
<div id="disk"></div>
<div id="start"><img src="images/start.png" id="startbtn" alt="幸运大转盘-jQuery+PHP实现的抽奖程序-完善中" ></div>
</div>
<!--效果html结束-->
</div>
</body>
</html>
-----------data.php----------------------------------
<?php
/**
* Created by 小雨在线
* User: 飛天
* Date: 2016/6/22 0022
* Time: 下午 4:27
*/
$prize_arr = array(
'0' => array('id' => 1, 'min' => 1, 'max' => 29, 'prize' => '一等奖', 'v' => 1),
'1' => array('id' => 2, 'min' => 302, 'max' => 328, 'prize' => '二等奖', 'v' => 2),
'2' => array('id' => 3, 'min' => 242, 'max' => 268, 'prize' => '三等奖', 'v' => 5),
'3' => array('id' => 4, 'min' => 182, 'max' => 208, 'prize' => '四等奖', 'v' => 7),
'4' => array('id' => 5, 'min' => 122, 'max' => 148, 'prize' => '五等奖', 'v' => 10),
'5' => array('id' => 6, 'min' => 62, 'max' => 88, 'prize' => '六等奖', 'v' => 25),
'6' => array('id' => 7, 'min' => array(32, 92, 152, 212, 272, 332), 'max' => array(58, 118, 178, 238, 298, 358), 'prize' => '七等奖', 'v' => 50)
);
function getRand($proArr)
{
$result = '';
//概率数组的总概率精度
$proSum = array_sum($proArr);
//概率数组循环
foreach ($proArr as $key => $proCur) {
$randNum = mt_rand(1, $proSum);
if ($randNum <= $proCur) {
$result = $key;
break;
} else {
$proSum -= $proCur;
}
}
unset ($proArr);
return $result;
}
foreach ($prize_arr as $key => $val) {
$arr[$val['id']] = $val['v'];
}
$rid = getRand($arr); //根据概率获取奖项id
$res = $prize_arr[$rid - 1]; //中奖项
$min = $res['min'];
$max = $res['max'];
if ($res['id'] == 7) { //七等奖
$i = mt_rand(0, 5);
$result['angle'] = mt_rand($min[$i], $max[$i]);
} else {
$result['angle'] = mt_rand($min, $max); //随机生成一个角度
}
$result['prize'] = $res['prize'];
echo json_encode($result);
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